If I'm working with a top-down concept inside an assembly I
cannot use a model with a serial number created from the
administration tool because PDMWE doesn't intercept the "Insert new
part" event.
What does it mean ? Is the PDMWE the end of top down projects ?

Yes, I'm creating a new part into the assembly . So I cannot
get the advantage of the auto Serial number / Model / File name
creation because the program doen't ask me what is model what I
want to use.
Adrian

I just looked at this - you are correct. If you are using Insert
Component > New Part, the new 2008 behaviour is that the part is
created internal to the assembly.
Please submit a SolidWorks enhancement request so that a serial
number is generated when you externalize the part.

Workaround: Open the internal part and do a Save As... this will
allow the automatic serail number generation to occur.

the problem is that the "Save As" doesn't start my PDMWE
template that contains my code generation algorithm. My PDMWE new
part template has a template created inside of Administration tool
that it's using some dynamics lists with some variables from Card
Editor.